package com.kltn.zigo;

import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;

import com.kltn.zigo.data.IP;

import android.app.Activity;
import android.app.ProgressDialog;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
  

public class UploadToServerActivity extends Activity {

	TextView messageText;
    Button uploadButton;
    int serverResponseCode = 0;
    ProgressDialog dialog = null;
        
    String upLoadServerUri = null;
     
    /**********  File Path *************/
    final String uploadFilePath = "/sdcard/";
    final String uploadFileName = "ABC.png";
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_upload_to_server);
		
		uploadButton = (Button)findViewById(R.id.uploadButton);
        messageText  = (TextView)findViewById(R.id.messageText);
         
        messageText.setText("Uploading file path :- '/sdcard/" + uploadFileName+"'");
         
        /************* Php script path ****************/
        upLoadServerUri = IP.get_IP() + "/zigo/KLTN/WebservicePHP/upload_to_server.php";
         
        uploadButton.setOnClickListener(new OnClickListener() {            
            @Override
            public void onClick(View v) {
                 
                dialog = ProgressDialog.show(UploadToServerActivity.this, "", "Uploading file...", true);
                 
                new Thread(new Runnable() {
                        public void run() {
                             runOnUiThread(new Runnable() {
                                    public void run() {
                                        messageText.setText("uploading started.....");
                                    }
                                });                      
                           
                             uploadFile(uploadFilePath + "" + uploadFileName);
                                                      
                        }
                      }).start();        
                }
            });
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.upload_to_server, menu);
		return true;
	}

	public int uploadFile(String sourceFileUri) {
        
        
        String fileName = sourceFileUri;

        HttpURLConnection conn = null;
        DataOutputStream dos = null;  
        String lineEnd = "\r\n";
        String twoHyphens = "--";
        String boundary = "*****";
        int bytesRead, bytesAvailable, bufferSize;
        byte[] buffer;
        int maxBufferSize = 1 * 1024 * 1024; 
        File sourceFile = new File(sourceFileUri); 
         
        if (!sourceFile.isFile()) {
             
             dialog.dismiss(); 
              
             Log.e("uploadFile", "Source File not exist :"
                                 +uploadFilePath + "" + uploadFileName);
              
             runOnUiThread(new Runnable() {
                 public void run() {
                     messageText.setText("Source File not exist :"
                             +uploadFilePath + "" + uploadFileName);
                 }
             }); 
              
             return 0;
          
        }
        else
        {
             try { 
                  
                   // open a URL connection to the Servlet
                 FileInputStream fileInputStream = new FileInputStream(sourceFile);
                 URL url = new URL(upLoadServerUri);
                  
                 // Open a HTTP  connection to  the URL
                 conn = (HttpURLConnection) url.openConnection(); 
                 conn.setDoInput(true); // Allow Inputs
                 conn.setDoOutput(true); // Allow Outputs
                 conn.setUseCaches(false); // Don't use a Cached Copy
                 conn.setRequestMethod("POST");
                 conn.setRequestProperty("Connection", "Keep-Alive");
                 conn.setRequestProperty("ENCTYPE", "multipart/form-data");
                 conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
                 conn.setRequestProperty("uploaded_file", fileName); 
                  
                 dos = new DataOutputStream(conn.getOutputStream());
        
                 dos.writeBytes(twoHyphens + boundary + lineEnd); 
                 dos.writeBytes("Content-Disposition: form-data; name= 'uploaded_file';filename='"
                                           + fileName + "'" + lineEnd); //can change name here <=======
                  
                 dos.writeBytes(lineEnd);
        
                 // create a buffer of  maximum size
                 bytesAvailable = fileInputStream.available(); 
        
                 bufferSize = Math.min(bytesAvailable, maxBufferSize);
                 buffer = new byte[bufferSize];
        
                 // read file and write it into form...
                 bytesRead = fileInputStream.read(buffer, 0, bufferSize);  
                    
                 while (bytesRead > 0) {
                      
                   dos.write(buffer, 0, bufferSize);
                   bytesAvailable = fileInputStream.available();
                   bufferSize = Math.min(bytesAvailable, maxBufferSize);
                   bytesRead = fileInputStream.read(buffer, 0, bufferSize);   
                    
                  }
        
                 // send multipart form data necesssary after file data...
                 dos.writeBytes(lineEnd);
                 dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
        
                 // Responses from the server (code and message)
                 serverResponseCode = conn.getResponseCode();
                 String serverResponseMessage = conn.getResponseMessage();
                   
                 Log.i("uploadFile", "HTTP Response is : "
                         + serverResponseMessage + ": " + serverResponseCode);
                  
                 if(serverResponseCode == 200){
                      
                     runOnUiThread(new Runnable() {
                          public void run() {
                               
                              String msg = "File Upload Completed.\n\n See uploaded file here : \n\n"
                                            + IP.get_IP() + IP.get_path_avatar()
                                            +uploadFileName;
                               
                              messageText.setText(msg);
                              Toast.makeText(UploadToServerActivity.this, "File Upload Complete.", 
                                           Toast.LENGTH_SHORT).show();
                          }
                      });                
                 }    
                  
                 //close the streams //
                 fileInputStream.close();
                 dos.flush();
                 dos.close();
                   
            } catch (MalformedURLException ex) {
                 
                dialog.dismiss();  
                ex.printStackTrace();
                 
                runOnUiThread(new Runnable() {
                    public void run() {
                        messageText.setText("MalformedURLException Exception : check script url.");
                        Toast.makeText(UploadToServerActivity.this, "MalformedURLException", 
                                                            Toast.LENGTH_SHORT).show();
                    }
                });
                 
                Log.e("Upload file to server", "error: " + ex.getMessage(), ex);  
            } catch (Exception e) {
                 
                dialog.dismiss();  
                e.printStackTrace();
                 
                runOnUiThread(new Runnable() {
                    public void run() {
                        messageText.setText("Got Exception : see logcat ");
                        Toast.makeText(UploadToServerActivity.this, "Got Exception : see logcat ", 
                                Toast.LENGTH_SHORT).show();
                    }
                });
                Log.e("Upload file to server Exception", "Exception : "
                                                 + e.getMessage(), e);  
            }
            dialog.dismiss();       
            return serverResponseCode; 
             
         } // End else block 
       } 
}

